<template>
    <div>
        <city-header></city-header>
        <city-search :cities="cities"></city-search>
        <city-list 
            :hot="hotCities"
            :cities="cities"
            :letter="letter"
        ></city-list>
        <city-alphabet 
            :cities="cities"
            @change="handleLetterChange"
        ></city-alphabet>
    </div>
    
</template>
<script>
import axios from 'axios'
import CityHeader from './components/Header'
import CitySearch from './components/Search'
import CityList from './components/List'
import CityAlphabet from './components/Alphabet'
export default {
    name:"City",
    data () {
        return {
            hotCities: [],
            cities: {},
            letter: ''
        }
    },
    components: {
        CityHeader,
        CitySearch,
        CityList,
        CityAlphabet
    },
    methods: {
        getCityInfo () {
            axios.get('/static/mock/city.json')
            .then(this.getCityInfoSucc)
        },
        // 从ajax获取的json文件中获取其中的数据
        getCityInfoSucc (res) {
            res = res.data;
            if (res.data && res.ret) {
                this.hotCities = res.data.hotCities
                this.cities = res.data.cities
            }
        },
        handleLetterChange (letter) {
            this.letter = letter
        }
    },
    mounted () {
        this.getCityInfo()
    }
}
</script>
<style lang="stylus" scoped>

</style>